Siemens SIPART DR21 User Manual

2 Technical Description
2.6 Technical Data
Manual
SIPART DR21
C73000-B7476-C143-08
45
6DR2804-8A/B Coupling relay 230 V
1 relay module 6DR2804-8B
2 relay modules 6DR2804-8A
per relay module 2 relays with 1 switching contact each with
spark quenching element
- Contact material Silver-cadmium oxide
Switching voltage
AC ≤ 250 V
DC ≤ 250 V
Switching current
AC ≤ 8A
DC ≤ 8A
Rating
AC ≤ 1250 VA
DC ≤30 W at 250 V
≤100 W at 24 V
- Service life
mechanical 2×10
7
switching cycles
electrical AC 220 V, ohmic 2×10
6
/I(A) switching cycles
- Spark quenching element Series circuit 22 nF/220 Ω parallel
plus varistor 420 V
rms
- Exciter winding
Voltage +19 to +30 V
resistance 1.2 kΩ 180 Ω
- Electrical isolation between
Exciter winding -- contacts
Relay module – relay module
(6DR2805-8A)
Safe isolation
1)
by reinforced isolation, air-
and creep lines for overvoltage class III
1)
and degree of contamination 2
1)
contact -- contact
of a relay module
Safe isolation
1)
by reinforced insulation,
air- and creep lines for overvoltage class II
1)
and degree of contamination 2
1)
1)
according to DIN EN 61010 Part 1
- T ype of protection
Housing IP50 according to DIN 40050
Connections (in plugged state) IP20 according to DIN 40050

Siemens SIPART DR21 Specifications

General

Brand	Siemens
Model	SIPART DR21
Category	Controller
Language	English